Expanded polytetrafluoroethylene (EPTFE) forms a 0.1-5μm three-dimensional microporous structure through a biaxial stretching process. Its essential characteristics are derived from the chemical inertness and nanoscale fiber network of polytetrafluoroethylene (PTFE), and it exhibits the following core capabilities at high temperatures:
Molecular chain stability: high C-F bond energy (485kJ/mol), thermal decomposition temperature>400℃ (ASTM E794), which is better than most polymer materials (such as aramid <300℃).
Resistance to thermal oxidation: oxygen index>95% (ASTM D2863), no risk of spontaneous combustion, and only slow carbonization at high temperatures (weight loss rate <0.1%/min, ASTM E662).
Low thermal shrinkage: thermal shrinkage <1% at 260℃ (ASTM D1204), avoiding protection failure caused by high temperature deformation.
Why Choose Us
Customized service
Temperature range adaptation: supports gradient structure design from -200℃ to +400℃, with adjustable thickness of 10-500μm.
Functional compound: optional flame retardant (LOI>30%), antistatic (10⁶-10¹²Ω/sq) or anti-molten metal splash layer (aluminum foil compound).
Certification and compliance
High temperature certification: passed ASTM F1060 (flame retardant), EN 11612 (arc protection) and ISO 11611 (welding protection) standards.
Environmental certification: OEKO-TEX® Standard 100, Bluesign® and ISO 14067 carbon footprint tracking (<5kg CO₂e/kg).
Supply chain guarantee
Capacity: monthly production of 50 tons of high temperature resistant EPTFE coils (width 1.6m/3.2m), slitting accuracy ±0.1mm.
Quick response: 7-day sample delivery (10 meters free), 30-day mass production (MOQ 500 meters), support for recycling of old materials (utilization rate>90%).
Our Factory
Our factory has been focusing on the production of e-PTFE and composite materials for over 10 years. We strictly select raw materials, strictly control production, and strictly inspect quality. We have a professional R&D team that can customize R&D and have long-term cooperation with suppliers. We reduce costs through optimized processes and large-scale automated production. We have won the trust of the market with high-quality, customized products and professional and focused attitude. We sincerely invite customers to consult and place orders.
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